//****************************************************************************
//  StringMutatipn.java    Java Foundations
//
//  Demonstrates the use of the String class and its methods.
//****************************************************************************

public class StringMutation
{
    //------------------------------------------------------------------------
    //  Print a string and various mutations of it.
    //------------------------------------------------------------------------
    public static void main (String[] args)
    {
       String phrase = "change is inevitable";
       String mutation1, mutation2, mutation3, mutation4;

       System.out.println ("Original string: \"" + phrase +  "\"");
       System.out.println ("length of string: " + phrase.length());
 
       mutation1 = phrase.concat (", except from vending machines.");
       mutation2 = mutation1.toUpperCase();
       mutation3 = mutation2.replace ('E', 'X');
       mutation4 = mutation3.substring (3, 30);
       
       //  Print each mutation string
       System.out.println ("Mutation #1: " + mutation1);
       System.out.println ("Mutation #2: " + mutation2);
       System.out.println ("Mutation #3: " + mutation3);
       System.out.println ("Mutation #4: " + mutation4);

       System.out.println ("Mutated length: " + mutation4.length());
    }
}
